In
the previous chapter, we wrote classes for creating vertical and
horizontal scrollbars. In this chapter, we will implement them. We will
write a class for creating the list view element, a compound part of
which will be a vertical scrollbar.

The element of the graphical interface list view gives the user a
choice of several options. The total number of the list view items and
the number of items in its visible part can differ when the total number
is too big and does not fit the highlighted working part of the
interface. In such cases a scrollbar is used.

We will compose a list view of several primitive objects and an include element. They are: